❌ A. [1, 2] ✅ B. [1] ❌ C. [2] ❌ D. [] ❌ E. The code does not compile ❌ F. None of the above
Explanation: Be careful when autoboxing into Integer. It actually outputs [1]. After adding the two values, the List contains [1, 2]. We then request the element with index 1 be removed. That’s right: index 1. Because there’s already a remove() method that takes an int parameter, Java calls that method rather than autoboxing. If you want to remove the 1, you can write numbers.remove(new Integer(1)) to force wrapper class use.
❌ A. [1, 2] ✅ B. [1] ❌ C. [2] ❌ D. [] ❌ E. The code does not compile ❌ F. None of the above
Explanation: Be careful when autoboxing into Integer. It actually outputs [1]. After adding the two values, the List contains [1, 2]. We then request the element with index 1 be removed. That’s right: index 1. Because there’s already a remove() method that takes an int parameter, Java calls that method rather than autoboxing. If you want to remove the 1, you can write numbers.remove(new Integer(1)) to force wrapper class use.
BY Explanations “Top Java Quiz Questions”
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The STAR Market, as is implied by the name, is heavily geared toward smaller innovative tech companies, in particular those engaged in strategically important fields, such as biopharmaceuticals, 5G technology, semiconductors, and new energy. The STAR Market currently has 340 listed securities. The STAR Market is seen as important for China’s high-tech and emerging industries, providing a space for smaller companies to raise capital in China. This is especially significant for technology companies that may be viewed with suspicion on overseas stock exchanges.
What Is Bitcoin?
Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.
